68707216 has 20 divisors (see below), whose sum is σ = 133263792. Its totient is φ = 34316576.

The previous prime is 68707213. The next prime is 68707229. The reversal of 68707216 is 61270786.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68707213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18855 + ... + 22201.

Almost surely, 2^68707216 is an apocalyptic number.

It is an amenable number.

68707216 is a deficient number, since it is larger than the sum of its proper divisors (64556576).

68707216 is a wasteful number, since it uses less digits than its factorization.

68707216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 68707216 is about 8288.9816021029. The cubic root of 68707216 is about 409.5756386573.

The spelling of 68707216 in words is "sixty-eight million, seven hundred seven thousand, two hundred sixteen".